Learn How to Win Material: Decisive Attack
This puzzle is a classic example of a forcing attack that converts activity into a huge material gain. White’s pieces are aimed at the enemy king and the back rank, but the real idea is not a checkmate: it is to attract the king, remove key defenders, and then win the trapped major piece. In practical classical chess, these combinations often arise when a defended-looking square is actually overloaded and the king becomes the only recapture available.